Fig. 5.

Cell lineages in SDX development in four woody angiosperms. A Phylogenetic relationships and estimated divergence times [65] of P. trichocarpa, E. grandis (both core eudicots), T. aralioides (basal eudicots), and L. chinense (magnoliids). Trait reversal: gain of tracheids and loss of vessel elements and libriform fibers. B–E Combined four-species analyses and two-dimensional visualization of SDX scRNA-seq data. Individual cells are colored as in Figs. 1 and 2. F–M The ray (F–I) and fusiform (J–M) lineages in the four species. N–U Schematics of different cell lineages across the four species